[INFO] cloning repository https://github.com/iofuwisa/learning_rust_dl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/iofuwisa/learning_rust_dl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiofuwisa%2Flearning_rust_dl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiofuwisa%2Flearning_rust_dl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c3cf2d144d4b25f9cdd6640a2fc4d4bab55e5095
[INFO] checking iofuwisa/learning_rust_dl against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fiofuwisa%2Flearning_rust_dl" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/iofuwisa/learning_rust_dl on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/iofuwisa/learning_rust_dl
[INFO] finished tweaking git repo https://github.com/iofuwisa/learning_rust_dl
[INFO] tweaked toml for git repo https://github.com/iofuwisa/learning_rust_dl written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/iofuwisa/learning_rust_dl already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "672373005ed4e6e936f2adacca73b151aa10a2b43fb3b63e0af3d27091178e2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "672373005ed4e6e936f2adacca73b151aa10a2b43fb3b63e0af3d27091178e2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "672373005ed4e6e936f2adacca73b151aa10a2b43fb3b63e0af3d27091178e2e", kill_on_drop: false }`
[INFO] [stdout] 672373005ed4e6e936f2adacca73b151aa10a2b43fb3b63e0af3d27091178e2e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 77e4629c2b8645a8ef2d95c4df42cbc71c6c0029582bb1172d7ff2c9e53a75db
[INFO] running `Command { std: "docker" "start" "-a" "77e4629c2b8645a8ef2d95c4df42cbc71c6c0029582bb1172d7ff2c9e53a75db", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.76
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling bumpalo v3.7.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling libc v0.2.100
[INFO] [stderr]    Compiling wasm-bindgen v0.2.76
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]     Checking rawpointer v0.2.1
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]     Checking scoped-tls v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]     Checking mnist v0.4.1
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking matrixmultiply v0.3.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking num-complex v0.4.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking ndarray v0.15.3
[INFO] [stderr]    Compiling wasm-bindgen-test-macro v0.3.26
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rulinalg v0.4.2
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]    Compiling wasm-bindgen-backend v0.2.76
[INFO] [stderr]    Compiling wasm-bindgen-macro-support v0.2.76
[INFO] [stderr]    Compiling wasm-bindgen-macro v0.2.76
[INFO] [stderr]     Checking console_error_panic_hook v0.1.6
[INFO] [stderr]     Checking js-sys v0.3.53
[INFO] [stderr]     Checking deep_learning v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::deep_learning::mnist::*`
[INFO] [stdout]   --> src/deep_learning/network.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::deep_learning::mnist::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::prelude::*`
[INFO] [stdout]   --> src/deep_learning/network.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use rand::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_panic_hook`
[INFO] [stdout]  --> src/utils.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn set_panic_hook() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `size`
[INFO] [stdout]  --> src/deep_learning/mnist.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     size: u32,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `img_rows`
[INFO] [stdout]   --> src/deep_learning/mnist.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     img_rows: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `img_cols`
[INFO] [stdout]   --> src/deep_learning/mnist.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     img_cols: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `getImgMatrix` should have a snake case name
[INFO] [stdout]   --> src/deep_learning/mnist.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn getImgMatrix(&self, index: u32) -> Matrix<f64> {
[INFO] [stdout]    |            ^^^^^^^^^^^^ help: convert the identifier to snake case: `get_img_matrix`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `getImgVec` should have a snake case name
[INFO] [stdout]   --> src/deep_learning/mnist.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn getImgVec(&self, index: u32) -> Vec<f64> {
[INFO] [stdout]    |            ^^^^^^^^^ help: convert the identifier to snake case: `get_img_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `getLabel` should have a snake case name
[INFO] [stdout]   --> src/deep_learning/mnist.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn getLabel(&self, index: u32) -> u8{
[INFO] [stdout]    |            ^^^^^^^^ help: convert the identifier to snake case: `get_label`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::deep_learning::mnist::*`
[INFO] [stdout]   --> src/deep_learning/network.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::deep_learning::mnist::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::prelude::*`
[INFO] [stdout]   --> src/deep_learning/network.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use rand::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::deep_learning::activation_functions::*`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::deep_learning::activation_functions::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::deep_learning::network::*`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::deep_learning::network::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::deep_learning::mnist::*`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::deep_learning::mnist::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Array1`, `arr2`, `s`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Array1,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 11 |     arr1,
[INFO] [stdout] 12 |     arr2,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 13 |     s
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `size`
[INFO] [stdout]  --> src/deep_learning/mnist.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     size: u32,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `img_rows`
[INFO] [stdout]   --> src/deep_learning/mnist.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     img_rows: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `img_cols`
[INFO] [stdout]   --> src/deep_learning/mnist.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     img_cols: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `getImgMatrix` should have a snake case name
[INFO] [stdout]   --> src/deep_learning/mnist.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn getImgMatrix(&self, index: u32) -> Matrix<f64> {
[INFO] [stdout]    |            ^^^^^^^^^^^^ help: convert the identifier to snake case: `get_img_matrix`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `getImgVec` should have a snake case name
[INFO] [stdout]   --> src/deep_learning/mnist.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn getImgVec(&self, index: u32) -> Vec<f64> {
[INFO] [stdout]    |            ^^^^^^^^^ help: convert the identifier to snake case: `get_img_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `getLabel` should have a snake case name
[INFO] [stdout]   --> src/deep_learning/mnist.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn getLabel(&self, index: u32) -> u8{
[INFO] [stdout]    |            ^^^^^^^^ help: convert the identifier to snake case: `get_label`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking wasm-bindgen-futures v0.4.26
[INFO] [stderr]     Checking wasm-bindgen-test v0.3.26
[INFO] [stdout] warning: unused import: `crate::deep_learning::mnist::*`
[INFO] [stdout]   --> src/deep_learning/network.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::deep_learning::mnist::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::prelude::*`
[INFO] [stdout]   --> src/deep_learning/network.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use rand::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::deep_learning::activation_functions::*`
[INFO] [stdout]  --> src/main.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::deep_learning::activation_functions::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::deep_learning::network::*`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::deep_learning::network::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::deep_learning::mnist::*`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use crate::deep_learning::mnist::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Array1`, `arr2`, `s`
[INFO] [stdout]   --> src/main.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     Array1,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 11 |     arr1,
[INFO] [stdout] 12 |     arr2,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 13 |     s
[INFO] [stdout]    |     ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::deep_learning::mnist::*`
[INFO] [stdout]   --> src/deep_learning/network.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::deep_learning::mnist::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::prelude::*`
[INFO] [stdout]   --> src/deep_learning/network.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use rand::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `size`
[INFO] [stdout]  --> src/deep_learning/mnist.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     size: u32,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `img_rows`
[INFO] [stdout]   --> src/deep_learning/mnist.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     img_rows: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `img_cols`
[INFO] [stdout]   --> src/deep_learning/mnist.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     img_cols: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `getImgMatrix` should have a snake case name
[INFO] [stdout]   --> src/deep_learning/mnist.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn getImgMatrix(&self, index: u32) -> Matrix<f64> {
[INFO] [stdout]    |            ^^^^^^^^^^^^ help: convert the identifier to snake case: `get_img_matrix`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `getImgVec` should have a snake case name
[INFO] [stdout]   --> src/deep_learning/mnist.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn getImgVec(&self, index: u32) -> Vec<f64> {
[INFO] [stdout]    |            ^^^^^^^^^ help: convert the identifier to snake case: `get_img_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `getLabel` should have a snake case name
[INFO] [stdout]   --> src/deep_learning/mnist.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn getLabel(&self, index: u32) -> u8{
[INFO] [stdout]    |            ^^^^^^^^ help: convert the identifier to snake case: `get_label`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `set_panic_hook`
[INFO] [stdout]  --> src/utils.rs:1:8
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub fn set_panic_hook() {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `size`
[INFO] [stdout]  --> src/deep_learning/mnist.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     size: u32,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `img_rows`
[INFO] [stdout]   --> src/deep_learning/mnist.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 |     img_rows: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `img_cols`
[INFO] [stdout]   --> src/deep_learning/mnist.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 |     img_cols: usize,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `getImgMatrix` should have a snake case name
[INFO] [stdout]   --> src/deep_learning/mnist.rs:52:12
[INFO] [stdout]    |
[INFO] [stdout] 52 |     pub fn getImgMatrix(&self, index: u32) -> Matrix<f64> {
[INFO] [stdout]    |            ^^^^^^^^^^^^ help: convert the identifier to snake case: `get_img_matrix`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `getImgVec` should have a snake case name
[INFO] [stdout]   --> src/deep_learning/mnist.rs:56:12
[INFO] [stdout]    |
[INFO] [stdout] 56 |     pub fn getImgVec(&self, index: u32) -> Vec<f64> {
[INFO] [stdout]    |            ^^^^^^^^^ help: convert the identifier to snake case: `get_img_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `getLabel` should have a snake case name
[INFO] [stdout]   --> src/deep_learning/mnist.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn getLabel(&self, index: u32) -> u8{
[INFO] [stdout]    |            ^^^^^^^^ help: convert the identifier to snake case: `get_label`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 29.70s
[INFO] running `Command { std: "docker" "inspect" "77e4629c2b8645a8ef2d95c4df42cbc71c6c0029582bb1172d7ff2c9e53a75db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77e4629c2b8645a8ef2d95c4df42cbc71c6c0029582bb1172d7ff2c9e53a75db", kill_on_drop: false }`
[INFO] [stdout] 77e4629c2b8645a8ef2d95c4df42cbc71c6c0029582bb1172d7ff2c9e53a75db